PVC (Polyvinyl Chloride), PE (Polyethylene), thiab POF (Polyolefin) yog txhua hom yas siv rau ntau yam kev siv, tshwj xeeb tshaj yog nyob rau hauv ntim. Ntawm no yog ib lub ntsiab lus ntawm lawv qhov sib txawv tseem ceeb.
Tshuaj muaj pes tsawg leeg
PE (Polyethylene) muaj ib qho yooj yim hydrocarbon saw, feem ntau siv nyob rau hauv ntau hom xws li LDPE (Low-Density Polyethylene) thiab HDPE (High-Density Polyethylene).
POF (Polyolefin) yog ib pawg ntawm cov polymers, feem ntau muaj polyethylene thiab polypropylene. Lo lus 'polyolefin' tuaj yeem suav nrog ntau yam polyethylene-based lossis polypropylene-based plastics.
PVC (Polyvinyl Chloride) muaj chlorine atoms hauv nws cov qauv. Nws yog ntau yam thermoplastic.
Mechanical Properties
Flexibility thiab elasticity
PE shrink zaj duab xis feem ntau muaj qhov hloov tau zoo, tshwj xeeb tshaj yog LDPE (Low-Density Polyethylene). Qhov kev hloov pauv no tso cai rau nws los qhwv ib ncig ntawm cov khoom bulkier thiab irregularly zoo li cov khoom. Nws yog stretchier piv rau PVC shrink zaj duab xis tab sis tsawg dua li POF.
PVC Shrink Zaj duab xis zoo li tsis tshua muaj zog thiab tsis tshua muaj zog piv rau PE thiab POF. Nws tuaj yeem ua kom nruj, uas muaj txiaj ntsig zoo rau kev tsim cov ntsaws ruaj ruaj, tab sis nruj dua.
POF Shrink Zaj duab xis yog paub txog nws qhov kev hloov pauv siab thiab elasticity, POF tuaj yeem ncab thiab ua raws li ntau yam duab yam tsis muaj qhov muag. Qhov no ua rau nws haum rau wrapping complex thiab irregular duab.
Tear thiab Puncture Resistance
PE shrink zaj duab xis muaj qhov tsim kua muag zoo thiab ua haujlwm zoo, tshwj xeeb tshaj yog thaum siv cov ntaub ntawv tuab. Cov cuab yeej no yog vim li cas PE shrink film feem ntau yog siv rau kev lag luam thiab kev ntim khoom hnyav.
PVC shrink zaj duab xis muaj cov kua muag me me thiab qhov ua haujlwm tsis zoo tab sis feem ntau nws yuav tsim kua muag ntau dua li PE thiab POF, tshwj xeeb tshaj yog nyob rau hauv cov ntaub ntawv nyias lossis thaum raug cov npoo ntse.
POF shrink zaj duab xis muaj cov kua muag zoo heev thiab kev tiv thaiv, feem ntau zoo dua PE thiab PVC. Qhov no ua rau nws zoo tagnrho rau cov khoom ntim nrog cov npoo ntse lossis cov duab nyuaj.
Tensile zog
PE shrink zaj duab xis feem ntau muaj qis zog tensile piv rau HDPE. PE shrink zaj duab xis lub zog tensile feem ntau qis dua POF, tab sis nws muaj lub zog txaus rau feem ntau cov ntawv ntim.
PVC shrink zaj duab xis muaj lub zog tensile nruab nrab, uas ua rau nws muaj peev xwm ua kom nruj thiab tsim cov ntsaws ruaj ruaj. Nws tuaj yeem ua nkig ntawm qhov kub thiab txias, cuam tshuam nws cov khoom tensile.
POF shrink zaj duab xis feem ntau muaj zog tensile ntau dua piv rau PE shrink zaj duab xis, muab ntxiv durability thiab yooj.
Impact Resistance
PE shrink zaj duab xis feem ntau muaj kev cuam tshuam zoo, tshwj xeeb tshaj yog nyob rau hauv cov ntaub ntawv qis qis xws li LDPE, uas tuaj yeem nqus cov kev poob siab thiab cuam tshuam.
PVC shrink zaj duab xis muaj qhov cuam tshuam tsis zoo, tab sis tuaj yeem ua nkig ntawm qhov kub thiab txias, txo nws lub peev xwm los tiv thaiv kev cuam tshuam.
POF shrink zaj duab xis muaj kev cuam tshuam zoo heev, tswj nws qhov yooj yim txawm tias qhov kub thiab txias, uas ua rau nws ua haujlwm tau zoo hauv ntau yam mob.
Txo tus nqi
PE shrink zaj duab xis feem ntau, muaj qhov qis qis dua piv rau PVC thiab POF. Qhov no tuaj yeem muaj txiaj ntsig zoo thaum xav tau cov txheej txheem shrinkage ntau dua.
PVC shrink zaj duab xis zoo li ntsws sai dua thiab hnyav dua, uas tuaj yeem ua rau cov ntsaws ruaj ruaj tab sis yuav tsum tau ceev faj tswj kom tsis txhob muaj cua sov thiab tawg.
POF shrink zaj duab xis tawm tsam qhov sib npaug ntawm qhov txo qis thiab kev tswj hwm, muab kev sib xyaw ua ke zoo ntawm kev nruj nruj thiab yoog raws. Nws feem ntau yuav tsum tau kub siab dua PVC tab sis qis dua PE.
Daim ntawv thov
PE Shrink Zaj duab xis muaj qhov yooj yim thiab ua haujlwm ntev tab sis tsis muaj qhov pom tseeb. Nws yog qhov zoo tagnrho rau kev ntim khoom hnyav, ntim ntau, thiab ntim cov khoom loj lossis cov khoom loj dua. Ntxiv mus, nws yog feem ntau siv rau hauv kev lag luam thiab kev siv tsheb thauj mus los nrog rau kev tsim kho thiab cov khoom siv hauv tsev.
PVC Shrink Zaj duab xis muab siab clarity thiab nruj shrinkage, yog haum rau cov khw muag khoom daim ntaub ntawv. Nws yog feem ntau siv nyob rau hauv khw muag khoom ntim, qhov twg nws clarity thiab nruj shrinkage muaj nuj nqis. Txawm li cas los xij, PVC shrink zaj duab xis tso tawm cov tshuaj lom thaum rhuab. Qhov no tau ua rau muaj kev poob qis hauv nws txoj kev siv, tshwj xeeb tshaj yog nyob rau hauv cov ntawv thov zaub mov.
POF Shrink Zaj duab xis sib xyaw ua ke, pom tseeb, thiab kev nyab xeeb, ua rau nws nyiam rau cov neeg siv khoom ntim nrog rau cov khoom noj, tshuaj pleev ib ce thiab kev zoo nkauj, thiab lwm yam. Tsis tas li ntawd, POF shrink zaj duab xis yog siv rau lub tes tsho ntsws, muab 360-degree daim ntawv lo rau lub raj mis thiab ntim.
Nqi
PE feem ntau yog cov yas uas tsis tshua muaj nqi, tshwj xeeb tshaj yog LDPE. Nws yog dav tsim, nrog kev lag luam ntawm nplai uas ua rau nws tus nqi qis. Nws tus nqi qis ua rau nws muaj kev xaiv nrov hauv kev ntim khoom. PVC feem ntau kim dua PE tab sis tus nqi siab dua ntawm PVC piv rau PE tuaj yeem raug cuam tshuam los ntawm nws cov kav ntev thiab haum rau ntau yam kev siv. POF feem ntau muaj tus nqi zoo ib yam li lossis siab dua me ntsis LDPE, qis dua PVC, ua rau nws muaj kev xaiv pheej yig rau cov ntawv thov xws li shrink-wrapping thiab ntim.
Kev txiav txim siab txog Environmental thiab Health
Kev rov ua dua tshiab
PE thiab POF yog 100% recyclable. Txawm li cas los xij, cov nqi rov ua dua sib txawv raws cheeb tsam, thiab cov txheej txheem rov ua dua tuaj yeem nyuaj. PVC kuj tseem tuaj yeem rov ua dua tshiab, tab sis cov nqi rov ua dua qis dua vim nws cov qauv nyuaj thiab rov ua dua PVC kuj tuaj yeem tso cov tshuaj lom.
Toxicity thiab tej yam uas tsim kev puas tsuaj
PE thiab POF ob qho tib si feem ntau suav hais tias tsis muaj tshuaj lom thiab nyab xeeb rau kev sib cuag zaub mov thiab lwm yam kev siv rhiab heev. Nws tsis muaj cov khoom phom sij, ua rau nws muaj kev nyab xeeb dua rau tib neeg kev noj qab haus huv thiab ib puag ncig. PVC tuaj yeem muaj cov khoom siv phom sij xws li phthalates thiab hlau hnyav, ua rau muaj kev txhawj xeeb txog kev pheej hmoo ntawm kev noj qab haus huv.
